LookUpEditBase.ItemsSourceChanged Event

Occurs after the ItemsSource property value has been changed.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v24.1.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public event ItemsSourceChangedEventHandler ItemsSourceChanged

VB.NET

Public Event ItemsSourceChanged As ItemsSourceChangedEventHandler

Event Data

The ItemsSourceChanged event's data class is ItemsSourceChangedEventArgs. The following properties provide information specific to this event:

Property	Description
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
NewValue	Gets a new ItemsSource property value.
OldValue	Gets an old ItemsSource property value.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source	Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

The ItemsSourceChanged event is fired after an editor’s ItemsSource property value has been changed. Use the OldValue property to get the previous ItemsSource property value. The NewValue property returns the new ItemsSource property value.